Fastening device



1. Fastening device

1.1 is a perspective view of a fastening device;

1.2 is another perspective view of the fastening device;

1.3 is another perspective view of the fastening device;

1.4 is a rear view of the fastening device;

1.5 is a front view of the fastening device;

1.6 is a top view of the fastening device;

1.7 is a bottom view of the fastening device; and

1.8 is a side view of the fastening device.

The dot-dash-dot broken line depicts boundaries of the claim and forms no part thereof.

The evenly spaced broken line depicts a feature of the fastening device that forms no part of the claimed design. 

CLAIM The ornamental design for a fastening device, as shown and described. 